Improved tuyere



UNITED STATES PATlgilT` OFFICEQ JoHNn-AYLIss, oF NEWxYoRK, N, Y.

IMPROVED TUYERE.

' an air-chamber in su'ch a manner that it Will become heated beforeescaping from'the tuyere to the iire ofthe furnace, whereby a muchbetter consumption ot' the products of combustion is secured, andthereby a greater amount of heat generated, than by the ordinaryarrangement of air-blasts for such furnaces. l

In the accompanying plate of drawings my improvement is illustrated,Figure l being a view of the tuyere, showing a Water-reservoir inconnection therewith, as well` as my improved vconstruction orarrangement of an air-chamber for heating the blast before escapy ingfromthe tuyere; and Fig. 2 a central vertical section through the tuyereand air-chamber with the connecting-pipe between the two for theair-blast.

Similar letters of reference indicate vlike parts. A in the drawingsrepresents the tuyere, which maybe made of any of the ordinaryconstructions therefor, but which in the present instance has its rearportion, B, made hollow, to allow a circulation of water or othercooling medium through the same from a reservoir, c, suitably connectedtherewith through pipes D and E, the one, D, for the passage of thewater, and the other, E, for the escape of the steam generated by theheat of' the tuyere from the water.

The tuyere is placed in a horizontal position, with its mouth or orice Ejust above the tiregrate of the furnace, the rear end of the orifice Gr,through the center of the tuyere, being connected by an elbow pipe ortube, H, with the under side ot' an air chamber or box, I, placed overthe tuyere, to the rear side ot' which, at or nearits top, one end of apipe, J, is connected, that at its other end is secured 'to theapparatus used for producing the air-blast.

From the above description it is plain to be seen that the air-blast, inpassing to the tnyere through the air chamber or box I must necessarilybecome heated thereby, and, from the heat of the furnace-tire itself,independent of the tuyere, wherebythe consumption ofthe products ot'combustion of the furnace is greatly lncreased, and a consequent greateramount of heat generated than by the ordinary mode of' passing theairblast directly through the tuyere, the importance of which result isapparent to all conversant with the use and op7 eration ot''blast-furnaces, forges, Sac.

I claim as new and desire to secure by Let ters Patent- The tuyere A,consisting of the water cham ber B, connecting-pipes D E,water-reservoir C, elbow-pi pe H, air-chamberl, and pipe J, and havingan opening, Gr, combined and operating substantially'as and for thepurpose represented and described.

The above specification of my invention signed by me this 27th day ot'February, 1866.

JOHN BAYLISS.

; Witnesses:

M. M. LTVTNGsToN, `ALBERT W. BROWN.

